* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2e7d32;
    --primary-dark: #1b5e20;
    --secondary-color: #ff9800;
    --accent-color: #f57c00;
    --text-dark: #2e2e2e;
    --text-light: #5a5a5a;
    --bg-light: #f5f7f3;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==================== Bootstrap 自定义样式 ==================== */

/* 导航栏样式 */
.navbar {
    background: rgba(46, 125, 50, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white) !important;
}

.navbar-brand:hover {
    color: var(--secondary-color) !important;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    transition: all 0.3s ease;
    position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--white) !important;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    width: 80%;
}

.dropdown-menu {
    border: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    overflow: hidden;
}

.dropdown-item {
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
}

.dropdown-item:hover {
    background: var(--primary-color);
    color: var(--white);
}

.lang-switch .btn {
    border-color: rgba(255, 255, 255, 0.5) !important;
    color: rgba(255, 255, 255, 0.9) !important;
}

.lang-switch .btn:hover,
.lang-switch .btn.active {
    background: var(--secondary-color) !important;
    border-color: var(--secondary-color) !important;
    color: var(--white) !important;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.logo i {
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    width: 100%;
}

.lang-switch {
    display: flex;
    gap: 0.5rem;
    margin-left: 1rem;
    padding-left: 1rem;
    border-left: 1px solid var(--border-color);
}

.lang-btn {
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    text-decoration: none;
    color: var(--text-dark);
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.lang-btn:hover {
    background: var(--bg-light);
}

.lang-btn.active {
    background: var(--primary-color);
    color: var(--white);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-dark);
}

.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    color: var(--white);
    padding-top: 80px;
    overflow: hidden;
}

/* 确保所有板块不被导航栏遮挡 */
section[id] {
    scroll-margin-top: 80px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
    background-image: 
        linear-gradient(30deg, transparent 40%, rgba(255,255,255,.1) 40%, rgba(255,255,255,.1) 60%, transparent 60%),
        linear-gradient(60deg, transparent 40%, rgba(255,255,255,.1) 40%, rgba(255,255,255,.1) 60%, transparent 60%);
    background-size: 100px 100px;
    animation: slide 20s linear infinite;
}

@keyframes slide {
    0% { background-position: 0 0; }
    100% { background-position: 100px 100px; }
}

.hero-content {
    text-align: center;
    z-index: 1;
    animation: fadeInUp 1s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== 轮播图背景样式 ==================== */
.slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1;
}

.slide-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1;
}

.carousel-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.carousel-caption {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
    text-align: center;
    width: 100%;
}

.carousel-item {
    position: relative;
    height: 100%;
    width: 100%;
    background-color: #2e7d32;
}

.carousel-item img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

/* 确保轮播图内容可见 */
.carousel-content {
    position: relative;
    z-index: 3;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 确保轮播图容器有正确的层级 */
#heroCarousel {
    position: relative;
    width: 100%;
    height: calc(100vh - 80px);
    min-height: 520px;
    z-index: 1;
}

.carousel-inner {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 2;
}

.carousel-caption {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
    text-align: center;
    width: 100%;
    color: white;
}

.btn {
    padding: 0.875rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background: var(--white);
    color: var(--primary-color);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-outline:hover {
    background: var(--white);
    color: var(--primary-color);
}

.features {
    padding: 5rem 0;
    background: var(--white);
    position: relative;
}

.features::before,
.products::before,
.solutions::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #ff9800, transparent);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-light);
}

.feature-card {
    border: none;
    border-radius: 15px;
    transition: all 0.3s ease;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 90px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    color: var(--white);
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(46, 125, 50, 0.3);
    border: 3px solid rgba(255, 255, 255, 0.2);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.feature-card .card-title {
    color: var(--text-dark);
    font-weight: 600;
    margin-bottom: 1rem;
}

.feature-card .card-text {
    color: var(--text-light);
    line-height: 1.6;
}

.products {
    padding: 6rem 0;
    background: var(--bg-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--white);
}

.product-content {
    padding: 2rem;
}

.product-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.product-content p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.product-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s ease;
}

.product-link:hover {
    gap: 1rem;
}

.solutions {
    padding: 6rem 0;
    background: var(--white);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.solution-item {
    text-align: center;
    padding: 2.5rem 2rem;
    background: var(--bg-light);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.solution-item:hover {
    background: var(--white);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.solution-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--white);
}

.solution-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.solution-item p {
    color: var(--text-light);
    line-height: 1.8;
}

.services {
    padding: 6rem 0;
    background: var(--bg-light);
}

.services-list {
    display: grid;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.service-item {
    display: flex;
    gap: 2rem;
    padding: 2rem;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.service-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-lg);
}

.service-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.2;
    min-width: 80px;
}

.service-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.service-content p {
    color: var(--text-light);
    line-height: 1.8;
}

.partners {
    padding: 6rem 0;
    background: var(--white);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
}

.partner-logo {
    text-align: center;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.partner-logo:hover {
    background: var(--white);
    box-shadow: var(--shadow);
    transform: scale(1.05);
}

.partner-logo i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.partner-logo p {
    color: var(--text-dark);
    font-weight: 600;
}

.news {
    padding: 6rem 0;
    background: var(--bg-light);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.news-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.news-image {
    height: 200px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--white);
}

.news-content {
    padding: 2rem;
}

.news-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.news-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.news-content h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    line-height: 1.4;
}

.news-content p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.news-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s ease;
}

.news-link:hover {
    gap: 1rem;
}

/* ==================== 关于我们样式 ==================== */
.about {
    background: var(--white);
}

.about-image img {
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    width: 100%;
    height: auto;
}

.about-image img:hover {
    transform: scale(1.02);
}

.about-content h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.about-content p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.about-content .list-unstyled li {
    padding: 0.75rem 0;
    font-size: 1.125rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.about-content .btn {
    padding: 0.75rem 2rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.about-content .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(46, 125, 50, 0.3);
}

/* ==================== 联系我们样式 ==================== */
.contact {
    background: var(--bg-light);
}

.contact-card {
    border: none;
    border-radius: 15px;
    transition: all 0.3s ease;
    background: var(--white);
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.contact-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    transition: all 0.3s ease;
    margin: 0 auto 1rem;
}

.contact-card:hover .contact-icon {
    transform: scale(1.1);
}

.contact-card .card-title {
    color: var(--text-dark);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.contact-card .card-text {
    color: var(--text-light);
    font-size: 1.1rem;
}

.contact {
    padding: 6rem 0;
    background: var(--bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-item {
    text-align: center;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.contact-item i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.contact-item h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.contact-item p {
    color: var(--text-light);
}

.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--white);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-left: 0.5rem;
}

.footer-bottom a:hover {
    color: var(--white);
}

@media (max-width: 1200px) {
    .hero-title {
        font-size: 3rem;
    }
}

@media (max-width: 992px) {
    .nav-menu {
        gap: 1rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .about-wrapper {
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow-lg);
        gap: 0.5rem;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu .nav-link {
        padding: 0.5rem 0;
        color: var(--text-dark);
    }
    
    .lang-switch {
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding-top: 1rem;
        margin-top: 0.5rem;
        width: 100%;
        justify-content: center;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 200px;
        text-align: center;
    }
    
    .slider-nav {
        padding: 0 10px;
    }
    
    .slider-prev, .slider-next {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }

    .section-header {
        margin-bottom: 2rem;
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }
    
    .section-header p {
        font-size: 1rem;
    }

    .about-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .features-grid,
    .products-grid,
    .solutions-grid,
    .contact-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .service-item {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .service-number {
        font-size: 2rem;
        min-width: auto;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-section {
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
    
    .partners-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid,
    .products-grid,
    .solutions-grid,
    .news-grid {
        gap: 1.5rem;
    }
    
    .feature-card,
    .product-card,
    .solution-item,
    .news-card {
        padding: 1.5rem;
    }
    
    .service-item {
        padding: 1.5rem;
    }
    
    .partner-logo {
        padding: 1.5rem;
    }
}

html {
    scroll-behavior: smooth;
}

/* ==================== 农业装饰元素 ==================== */
.agricultural-pattern {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0.03;
    background-image: 
        radial-gradient(circle at 20% 20%, #2e7d32 2px, transparent 2px),
        radial-gradient(circle at 80% 80%, #2e7d32 2px, transparent 2px),
        radial-gradient(circle at 40% 40%, #ff9800 1px, transparent 1px),
        radial-gradient(circle at 60% 60%, #ff9800 1px, transparent 1px);
    background-size: 100px 100px, 100px 100px, 50px 50px, 50px 50px;
    pointer-events: none;
    z-index: -1;
}

.features::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #2e7d32, #ff9800, #2e7d32);
    border-radius: 2px;
}